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tune up

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Production. A-31 ("Vengeance") dive bombers. Motor tune-up. Flight service mechanics are shown here warming up the motor of a Vultee "Vengeance" dive bomber prior to the ship's take-off for a test flight at the Nashville Division of Vultee Aircraft Inc. The "Vengeance" (A-31) was originally designed for the French. It was later adopted by the RAF (Royal Air Force) and still later by the U.S. Army Air Forces. It is a single-engine, low-wing plane, carrying a crew of two men and having six machine guns of varying calibers

Production. A-31 ("Vengeance") dive bombers. Motor tune-up. Flight ser...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.